Update container-environment-variables.md

Modify "are" to "is"
2017-08-12 11:47:35 +08:00 · 2017-08-12 11:47:35 +08:00 · 417eb1b8dd
parent 254234bbe3
commit 417eb1b8dd
1 changed files with 1 additions and 1 deletions
--- a/docs/concepts/containers/container-environment-variables.md
+++ b/docs/concepts/containers/container-environment-variables.md
@ -38,7 +38,7 @@ as are any environment variables specified statically in the Docker image.

 ### Cluster information

-A list of all services that were running when a Container was created are available to that Container as environment variables.
+A list of all services that were running when a Container was created is available to that Container as environment variables.
 Those environment variables match the syntax of Docker links.

 For a service named *foo* that maps to a container port named *bar*,